PMID- 23417225 OWN - NLM STAT- MEDLINE DCOM- 20131105 LR - 20161125 IS - 1864-6433 (Electronic) IS - 0914-7187 (Linking) VI - 27 IP - 4 DP - 2013 May TI - Assessment of FDG retention differences between the FDG-avid benign pulmonary lesion and primary lung cancer using dual-time-point FDG-PET imaging. PG - 392-9 LID - 10.1007/s12149-013-0698-4 [doi] AB - PURPOSE: The aim of this study was to clarify FDG retention differences between FDG-avid benign pulmonary lesions (BPLs) and primary lung cancers (PLCs), and between tuberculous and non-tuberculous BPLs using dual-time-point FDG-PET imaging. METHODS: Thirty-four BPLs and 47 PLCs with a maximal standardized uptake value (SUVmax) >2.5 and a maximal axial diameter >10 mm were enrolled. We compared the retention index (RI) among different types of lesions, and evaluated the relationship between RI and SUVmax at 1 h (SUV1). Glucose transporter-1 (Glut-1) and hexokinase (HK)-2 expression was assessed in eight non-tuberculous BPLs. RESULTS: BPLs and PLCs showed similar high RIs (mean +/- SD 33.6 +/- 22.6 and 32.5 +/- 23.7, respectively; p = 0.95). In BPLs, both tuberculous and non-tuberculous lesions showed high RIs (39.1 +/- 25.8 and 30.3 +/- 20.3, respectively; p = 0.43). However, BPLs and PLCs exhibited a different relationship between RI and SUV1. BPLs tended to show lower RIs with higher SUV1s, and a mild negative correlation, whereas PLCs showed persistent high RIs and no significant correlation. Glut-1 and HK-2 expression was found in 75 and 12.5 % of non-tuberculous BPLs, respectively. CONCLUSIONS: FDG-avid BPLs could show high RIs regardless of their being tuberculous and non-tuberculous lesions, and no significant difference with PLC RIs was found. FDG-avid BPLs and PLCs showed different relationships between RI and SUV1, and it seemed to be related with different mechanisms of high FDG retention. However, the mechanisms of high FDG retention in FDG-avid BPLs remain unclear, and this matter requires further investigation. FAU - Kaneko, Koichiro AU - Kaneko K AD - PET Imaging Center, Koga Hospital 21, 3-3-8 Miyanojin, Kurume, 839-0801, Japan. kkaneko-kyu@umin.ac.jp FAU - Sadashima, Eiji AU - Sadashima E FAU - Irie, Koji AU - Irie K FAU - Hayashi, Akihiro AU - Hayashi A FAU - Masunari, Satoru AU - Masunari S FAU - Yoshida, Tsuyoshi AU - Yoshida T FAU - Omagari, Junichi AU - Omagari J LA - eng PT - Comparative Study PT - Journal Article DEP - 20130217 PL - Japan TA - Ann Nucl Med JT - Annals of nuclear medicine JID - 8913398 RN - 0 (Radiopharmaceuticals) RN - 0Z5B2CJX4D (Fluorodeoxyglucose F18) SB - IM EIN - Ann Nucl Med. 2013 Oct;27(8):793. Sadashima, Shinji [corrected to Sadashima, Eiji] MH - Adult MH - Aged MH - Aged, 80 and over MH - Diagnosis, Differential MH - Female MH - Fluorodeoxyglucose F18/*pharmacokinetics MH - Humans MH - Lung Neoplasms/*diagnostic imaging/*metabolism MH - Male MH - Metabolic Clearance Rate MH - Middle Aged MH - Positron-Emission Tomography/*methods MH - Radiopharmaceuticals/pharmacokinetics MH - Reproducibility of Results MH - Retrospective Studies MH - Sensitivity and Specificity MH - Tissue Distribution MH - Tuberculosis, Pulmonary/*diagnostic imaging/*metabolism EDAT- 2013/02/19 06:00 MHDA- 2013/11/06 06:00 CRDT- 2013/02/19 06:00 PHST- 2012/12/02 00:00 [received] PHST- 2013/02/03 00:00 [accepted] PHST- 2013/02/19 06:00 [entrez] PHST- 2013/02/19 06:00 [pubmed] PHST- 2013/11/06 06:00 [medline] AID - 10.1007/s12149-013-0698-4 [doi] PST - ppublish SO - Ann Nucl Med. 2013 May;27(4):392-9. doi: 10.1007/s12149-013-0698-4. Epub 2013 Feb 17.